Powering London’s Data Centre Cluster: A New Substation Installation

Summary:

1. National Grid is constructing the new Uxbridge Moor substation in Buckinghamshire, unlocking 1.8 GW of grid capacity and connecting data centers near London.
2. The substation will be the largest on National Grid’s network by capacity and will use SF6-free gas-insulated switchgear to reduce its physical footprint.
3. The project aims to support economic growth, create jobs, and minimize environmental impact, with Murphy as the principal contractor.

   Article:
   National Grid Initiates Construction of Innovative Uxbridge Moor Substation

   National Grid has kicked off the construction of its cutting-edge Uxbridge Moor substation in Buckinghamshire, a significant project set to unleash 1.8 GW of additional grid capacity. This capacity is substantial enough to power a mid-sized city and will facilitate the connection of over a dozen data centers situated on the outskirts of London.

   The Uxbridge Moor substation, located adjacent to the existing but fully utilized Iver 400 kV site, is poised to become the largest facility on National Grid’s network in terms of capacity. Notably, the substation’s indoor 400 kV and 132 kV switchhouses will employ SF6-free gas-insulated switchgear, a move that will reduce the substation’s physical footprint by approximately 70% and enhance its sustainability.

   Laura Mulcahy, Project Director at National Grid Electricity Transmission, emphasized the importance of the Uxbridge Moor substation in providing essential power access to data centers, pivotal players in Britain’s innovation and economic advancement. Mulcahy highlighted the role of the substation in fostering job creation and investment in Buckinghamshire, ultimately supporting the digital future of the UK.

   To execute the project, National Grid has enlisted Murphy as the principal contractor to oversee the construction of the two GIS halls, installation of underground cables, and integration with the nearby 400 kV overhead line. Liam Corr, Managing Director of Energy at Murphy, underscored the company’s commitment to pioneering energy solutions and its dedication to collaborating with National Grid to ensure long-term energy security.

   Energy Minister Michael Shanks lauded the initiation of the Uxbridge Moor substation project, emphasizing its significance in bolstering industries of the future and aligning with the government’s Plan for Change. Shanks highlighted the reforms to the grid connections queue aimed at expediting the process of connecting high-growth firms like data centers and AI hubs to the grid, while accelerating projects that promote the expansion of clean, domestically produced power by 2030.